Description
A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system. This flaw affects Linux kernel versions prior to 5.16-rc4.
References (7)
Core 7
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=2029923
Mailing List, Patch x_refsource_misc
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=054aa8d439b9
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2022/dsa-5096
Patch, Third Party Advisory x_refsource_misc
https://www.oracle.com/security-alerts/cpujul2022.html
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20220217-0005/
Scores
CVSS v3
7.0
EPSS
0.0001
EPSS Percentile
1.7%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-362
CWE-416
Status
published
Products (17)
debian/debian_linux
9.0
debian/debian_linux
10.0
linux/linux_kernel
5.16 rc1 (3 CPE variants)
linux/linux_kernel
< 4.4.294
netapp/h300e_firmware
netapp/h300s_firmware
netapp/h410c_firmware
netapp/h410s_firmware
netapp/h500e_firmware
netapp/h500s_firmware
... and 7 more
Published
Jan 18, 2022
Tracked Since
Feb 18, 2026